docker run -p 8080:8080 -e CONTAINER_CONFIG='aWQ9R1RNLUtONU5GOTlLJmVudj0xJmF1dGg9TllhTDQ4X05ENlEwamw0TjhoUEFtdw==' -e RUN_AS_PREVIEW_SERVER=true gcr.io/cloud-tagging-10302018/gtm-cloud-image:stable

docker run -p 8081:8080 -e CONTAINER_CONFIG='aWQ9R1RNLUtONU5GOTlLJmVudj0xJmF1dGg9TllhTDQ4X05ENlEwamw0TjhoUEFtdw==' -e PREVIEW_SERVER_URL='https://gtm.dilate.com.au/tagging/' gcr.io/cloud-tagging-10302018/gtm-cloud-image:stable

docker run -p 8081:8080 \
           -v /var/www/html/nginx.conf:/etc/nginx/nginx.conf \
           -e CONTAINER_CONFIG='aWQ9R1RNLUtONU5GOTlLJmVudj0xJmF1dGg9TllhTDQ4X05ENlEwamw0TjhoUEFtdw==' \
           -e PREVIEW_SERVER_URL='https://gtm.dilate.com.au/tagging/' \
           gcr.io/cloud-tagging-10302018/gtm-cloud-image:stable

curl -H 'x-gtm-server-preview: ZW52LTN8N0N3Uk5kaDVva0xueklXUks5U19WZ3wxOGZlNjU2N2QzZTI0N2FjYmM1Y2Q=' 'https://gtm.dilate.com.au/tagging/g/collect?v=2&en=page_view&tid=G-1234&cid=123.456&dl=https%3A%2F%2Fexample.com%2F'

docker exec -it 6d6c93211a9a sh
docker exec -it 6d6c93211a9a bash

NOTE that there two running containers
//show running containers
docker ps